Merge pull request #41269 from frappe/mergify/bp/version-14-hotfix/pr-41268

fix: validation to prevent overallocation (backport #41268)

erpnext/accounts/utils.py

@@ -479,6 +479,11 @@ def reconcile_against_document(
 		# re-submit advance entry
 		doc = frappe.get_doc(entry.voucher_type, entry.voucher_no)
 		gl_map = doc.build_gl_map()
+		from erpnext.accounts.general_ledger import process_debit_credit_difference
+
+		# Make sure there is no overallocation
+		process_debit_credit_difference(gl_map)
+
 		create_payment_ledger_entry(gl_map, update_outstanding="No", cancel=0, adv_adj=1)
 
 		# Only update outstanding for newly linked vouchers